airline
n.a company that provides regular flights for people or goods. You use this word when talking about businesses like Delta, Ryanair, or Emirates.
n.a commercial enterprise providing scheduled air transport services for passengers or freight.
“The airline offers cheap flights to Europe.”
“Most passengers choose their airline based on a combination of ticket price and baggage allowance.”
“The national airline faced significant financial pressure after a series of strikes led to the cancellation of hundreds of international flights during the peak holiday season.”
Often used as a noun adjunct to modify other nouns, such as in 'airline industry' or 'airline pilot'.
From air + line.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.